In accordance with the "Measures Law of the People's Republic of China" and the National Metrological Verification Regulations of the People's Republic of China, the optometry, coronometer and optometry lens box of the mirror enterprises and medical institutions in the jurisdiction shall be compulsory to ensure the performance of the instruments used by the mirror enterprises. Reliable, accurate data, indirectly guarantee the accuracy of the configured glasses, and effectively protect the interests of the majority of optician customers. Go back to Sohu and see more